ZCZC NFDTCPAT4 ALL TTAA00 KWNH DDHHMM BULLETIN Post-Tropical Cyclone Sally Advisory Number 28 NWS Weather Prediction Center College Park MD AL192020 1100 PM EDT Thu Sep 17 2020 ...POST-TROPICAL DEPRESSION SALLY STARTING TO ACCELERATE BUT STILL PRODUCING HEAVY RAINFALL OVER EASTERN NORTH CAROLINA AND SOUTHEAST VIRGINIA... ...A TORNADO OR TWO REMAINS POSSIBLE OVER EASTERN NORTH CAROLINA TONIGHT... SUMMARY OF 1100 PM EDT...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...34.3N 80.7W ABOUT 30 MI...50 KM NE OF COLUMBIA SOUTH CAROLINA ABOUT 55 MI...95 KM W OF FLORENCE SOUTH CAROLINA MAXIMUM SUSTAINED WINDS...25 MPH...35 KM/H PRESENT MOVEMENT...NE OR 50 DEGREES AT 15 MPH...24 KM/H MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES WATCHES AND WARNINGS -------------------- Flood and Flash Flood Watches are in effect across portions of South Carolina...North Carolina...and southeast Virginia. DISCUSSION AND OUTLOOK ---------------------- At 1100 PM EDT (0300 UTC), the center of Post-Tropical Cyclone Sally was located near latitude 34.3 North, longitude 80.7 West. The post-tropical cyclone is moving toward the northeast near 15 mph (24 km/h) and this motion is expected to continue tonight. Maximum sustained winds are near 25 mph (35 km/h) with higher gusts. Little change in strength is forecast during the next 12 hours. The stronger winds are primarily located along and offshore the South and North Carolina coasts. The estimated minimum central pressure is 1004 mb (29.65 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL/FLOODING: Sally is expected to produce an additional 1 to 4 inches of rainfall across portions of eastern North Carolina and southeast Virginia. Scattered flash flooding and minor to isolated moderate river flooding is likely. TORNADOES: A tornado or two may occur across eastern North Carolina tonight. NEXT ADVISORY ------------- This is the last public advisory issued by the Weather Prediction Center on this system. $$ Forecaster Chenard FORECAST POSITIONS AND MAX WINDS INIT 18/0300Z 34.3N 80.7W 20 KT 25 MPH...POST-TROP 12H 18/1200Z 35.9N 75.5W 20 KT 25 MPH...POST-TROP 24H 19/0000Z...POST-TROP/REMNT LOW NNNN
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